leaf and oil stains

M

Michael Cappa

Member
I am doing a few driveways that have a nice amount of leaf stains and some oil stains as well. I am going to try oxalic acid. Does anyone have any better/faster ideas on removing the stains. I then have to seal them.

thanks in advance.
 
the ox acid will help brighten it

it wont do anything to degrease.
Bleach will also help with the leaf stains.
You might want to check out MR.MUSCLE
AT WWW.ENVIROSPEC.COM
it's cheap and works well.
 
Concrete cleaners containing potassium hydroxide or sodium metisilicate work well on degreasing. An oxalic acid application after the concrete has been degreased will give you better results. Hot water also helps significantly.
 
should have read this earlier. The bleach worked great. Can there be a problem if I put it on too heavy and don't rinse? I applied it with my pump up sprayer, straight. It worked great and fast. Well I only paid about $1.00 per gallon so I guess it wasn't that big of a loss. Any suggestions for tire marks? I used some rust remove stuff for concrete to see what would happen and it removed marks, grease, everything great. Downside, it is expensive, about $8-9.00 a bottle. Bottle is the size of a normal windex bottle.
 
ron p

i dont work for e-spec but i use there cleaners.
Tire marks are carbon and oil.
So use a degreaser.
that MR.MUSCLE is about $2 per gal after shipping
then use it in your downstreamer so it's about pretty darn cheap.
p.s.
if bleach worked so well in a pump-up[6%sh] then use liquid pool chlorine[12%] and a x-jet tip.
It will go a lot faster.
Bleach left in the sun turn's to salt water.
 
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